Nike Air Max VaporMax Flyknit 3 fits true to size for most people — the same number as Air Jordan 1, Air Max 90, and YEEZY Boost 350 V2, and about half a size larger in number than your Air Force 1. The Flyknit upper wraps the foot closely, and the VaporMax Air unit under the sole doesn't change length. Based on 353 owner-reported pairs in the Feetlot database, the typical wearer takes the same number in VaporMax Flyknit 3 as in most common sneakers. If unsure: order true to size. Wide feet should size up half — the Flyknit stretches at the forefoot but the heel structure doesn't.
VaporMax Flyknit 3 Sizing — What 353 Pairs in the Feetlot Database Tell Us
The Nike Air Max VaporMax Flyknit 3 is the most-tracked VaporMax generation in the Feetlot database. Across 353 owner-reported pairs, the residual variance is tight (standard deviation ≈ 0.24 size units), meaning sizing is consistent across the various VaporMax 3 colorways (Triple Black, White, Multicolor). Feetlot data shows VaporMax Flyknit 3 fits true to size — the same number as AJ1, Air Max 90, and YEEZY Boost 350 V2, and about half a size larger in number than AF1.
The reason VaporMax Flyknit 3 runs at true Nike size — rather than half down like AF1 — is the Flyknit upper construction. Flyknit sits much closer to the foot than AF1's padded leather, and the plastic heel clip anchors the back of the foot at length. The full-length Air VaporMax unit underfoot is a direct-to-outsole construction with no foam midsole between the foot and the Air; this makes the shoe feel lower-profile than a traditional Air Max but doesn't change the length recommendation. Going below true size presses the toes against the Flyknit at the forefoot.
Should You Size Up or Down in VaporMax Flyknit 3?
Standard fit (most people)
Order true to size — your usual sneaker number, same as AJ1, AM90, or YEEZY 350 V2. The Flyknit upper conforms to the foot over the first few wears without changing length. Don't apply the "half down from AF1" adjustment to VaporMax — the Flyknit doesn't leave AF1's heel slack.
Wide feet
Size up half. The Flyknit accommodates moderate forefoot width through its stretch, but the plastic heel clip and midfoot support don't expand. Width isn't available separately on most VaporMax colorways. Half a size up is the standard wide-foot adjustment in the Feetlot database.
Narrow feet
True to size works for most narrow feet — the Flyknit wraps the foot tightly regardless of width. Going half down can fit very narrow feet but risks the heel clip pressing the back of the ankle at the top edge.
VaporMax Flyknit 3 vs VaporMax 2 vs VaporMax Plus
The VaporMax Flyknit 1 (2017), 2 (2018), and 3 (2019/2020) all use the same Flyknit-and-Air-unit construction with the same length advice — true to size. The VaporMax Plus uses a different upper (structured mesh instead of Flyknit) but sits in the same size bucket based on available data. Same number across all VaporMax generations.
How VaporMax Flyknit 3 Compares to Other Sneakers
The Nike Air Max VaporMax Flyknit 3 fits at the same numerical size as Air Jordan 1, Air Jordan 3, Air Jordan 4, Air Jordan 5, Air Jordan 6, Air Jordan 11, Nike Air Max 90, Nike Air Max 1, Air Max 95, Air Max 97, Air Max 270, Nike Dunk Low, Nike Dunk High, SB Dunk Low, Nike Blazer Mid '77, Vans Authentic, adidas NMD R1, adidas YEEZY Boost 350 V2, adidas Ultraboost 4.0, and New Balance 574. According to Feetlot data, all of these round to the same size in 0.5 increments.
The shoes that run larger in number than VaporMax Flyknit 3: Nike Air Force 1, Converse Chuck Taylor Ox, adidas Superstar, adidas Stan Smith, adidas Gazelle, and Sperry Authentic Original all run about half a size smaller in number — if you wear VaporMax 3 in 10, take 9.5 in those. Clarks Desert Boot runs about a full size smaller in number — if you wear VaporMax 3 in 10, take Desert Boot in 9.
Boot-style models: Red Wing Iron Ranger runs about a full size smaller in number than VaporMax 3 — if you wear VaporMax 3 in 10, take Iron Ranger in 9.
Sign in to Feetlot and add a few of your other sneakers to get a personal VaporMax Flyknit 3 size recommendation calibrated to your actual foot.
Nike Air Max VaporMax Flyknit 3 Size Chart (US / EU / UK)
| US Men's | US Women's | UK | EU |
|---|---|---|---|
| 7 | 8.5 | 6 | 40 |
| 7.5 | 9 | 6.5 | 40.5 |
| 8 | 9.5 | 7 | 41 |
| 8.5 | 10 | 7.5 | 42 |
| 9 | 10.5 | 8 | 42.5 |
| 9.5 | 11 | 8.5 | 43 |
| 10 | 11.5 | 9 | 44 |
| 10.5 | 12 | 9.5 | 44.5 |
| 11 | 12.5 | 10 | 45 |
| 11.5 | 13 | 10.5 | 45.5 |
| 12 | 13.5 | 11 | 46 |
| 13 | 14.5 | 12 | 47.5 |
Common Sizing Mistakes
- Buying VaporMax 3 in your AF1 size. AF1 runs about half a size smaller in number than VaporMax 3. If you wear AF1 in 10, take VaporMax 3 in 10.5.
- Sizing up because of the Flyknit "sock fit." The Flyknit wraps the foot closely at true size — it doesn't need extra room. Sizing up half adds forefoot length slack without improving width.
- Carrying your adidas Superstar size over. Superstar runs about half a size smaller in number than VaporMax 3. If you wear Superstar in 10, take VaporMax 3 in 10.5.
- Expecting the Flyknit to stretch significantly. The Flyknit accommodates moderate forefoot width through stretch but doesn't stretch in length. Going small expecting length gain leads to heel clip pressure on the back of the ankle.
- Comparing VaporMax to traditional Air Max sizing. VaporMax uses Flyknit, which runs true to size. Traditional Air Max models (AM90, AM97, AM1) also run at the same true-size bucket. All of these are true to size.
How Feetlot Computes These Numbers
Every VaporMax Flyknit 3 sizing recommendation on Feetlot is the output of a global offset model fit to over 100,000 owner-reported shoe records. Each shoe gets a single number — its "size offset" — that captures how its sizing drifts relative to a reference shoe (the Nike Air Force 1). When a Feetlot user provides their size in any tracked shoe, the model recovers their true foot baseline and recommends the matching VaporMax size.
This works better than the pairwise approach you'll see on most sneaker blogs because Feetlot uses the entire wardrobe graph. A YEEZY 350 owner contributes data about how YEEZY fits relative to AF1 owners (who often own both), which links back to VaporMax owners through any shared model. Even when two users share zero shoes directly, the chain of users in between transmits a consistent recommendation. The result: sizing advice that holds up no matter how unusual a wardrobe is.